The best replacement for ammonium is ammonia.

The best alternatives to ammonium are rated as following:
★★★★★  ammonia
★★  nitrate
★  sodium laureth sulfate
★  sodium lauryl sulfate
  potassium alum
  urea

Your alternative for ammonium is not listed? Suggest!
Speaking about ammonium, one probably shouldn't forget about nitrate.

Other search terms related to ammonium and their ratings are:
★★★★★ nitrate
★★★★ copper sulfate
★★★★ sulfate
You have in mind a companion for ammonium and it is not yet here? Propose!



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ammonium
ammonia
nitrate